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| Registros recuperados : 39 | |
| 5. |  | VIÑOLES, C.; SOSA, C.; MEIKLE, A.; ABECIA, J.-A. Embryo losses during nutritional treatments in animal models: lessons for humans embryo losses and nutrition in Mammals. In: Watson, R.R. (Ed.), 2015, Handbook of Fertility: Nutrition, Diet, Lifestyle and Reproductive Health. Elsevier, p.99-105 (Chap. 9). 99-105| Biblioteca(s): INIA Las Brujas. |
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| 6. | | VIÑOLES, C.; NICOLINI, P.; ULGUIM, R.; MEIKLE, A.; GONZÁLEZ, X. Endocrinología folicular y expresión génica del complejo cumulus oocito en vacas Hereford fértiles y subfértiles. [Resumen de poster]. ln: Encuentro de Investigadores de la Región Noreste: Cerro Largo-Rivera-Tacuarembó, 1., 12 de agosto de 2016, Campus Interinstitucional de Tacuarembó, Tacuarembó. Libro de Resúmenes. Tacuarembó: UDELAR; INIA, 2016. p. 68| Biblioteca(s): INIA Tacuarembó. |
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| 7. | | VIÑOLES, C.; GUGGERI, D.; CARRIQUIRY, M.; MEIKLE, A. Effect of age at weaning and plane of nutrition before weaning on progesterone secretion and uterine gene expression at first service in beef heifers. In: INTERNATIONAL CONGRESS ON ANIMAL REPRODUCTION (ICAR), 17., 2012, VANCOUVER, CA. Proceedings. Reproduction in Domestic Animals, v, 47, suppl 4, p. 565-566, 2012.| Biblioteca(s): INIA Tacuarembó. |
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| 10. | | ALVEZ, A.; GUILLEN, S.; SEQUEIRA, M.; MEIKLE, A.; VIÑOLES, C. Sub-fertility in beef cattle: follicle dynamics and progesterone concentration during the estrus cycle. [Resumen de poster]. ln: Encuentro de Investigadores de la Región Noreste: Cerro Largo-Rivera-Tacuarembó, 1., 12 de agosto de 2016, Campus Interinstitucional de Tacuarembó, Tacuarembó. Libro de Resúmenes. Tacuarembó: UDELAR; INIA, 2016. p. 44 Modalidad: poster.| Biblioteca(s): INIA Tacuarembó. |
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| 11. | | ALVEZ, A.; GUILLEN, S.; SEQUEIRA, M.; MEIKLE, A.; VIÑOLES, C. Sub-fertility in beef cattle: follicle dynamics and progesterone concentrations during the estrus cycle In: Juengel, J.L.; Miyamoto, A.; Price, C.; Reynolds, L.P.; Smith, M.F.; Webb, R.; eds. Proceedings of the International Symposium on Reproduction in Dometic Ruminants, 9., Obihiro, Hokkaido, Japan, Agosto 2014 621 p.| Biblioteca(s): INIA Tacuarembó. |
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| 12. | | BRIANO, C.; SCARSI, A.; VELAZCO, J.I.; BAKKER, M.; BANCHERO, G.; MEIKLE, A.; QUINTANS, G. Alta y baja asignación de forraje antes del parto: efectos sobre variables productivas y reproductivas. Resultados preliminares In: QUINTANS, G.; SCARSI, A. (Eds.). Seminario de actualización técnica: cría vacuna Montevideo (UY): INIA, 2013. p. 175-185 (INIA Serie Técnica; 208)| Biblioteca(s): INIA La Estanzuela; INIA Las Brujas; INIA Tacuarembó; INIA Treinta y Tres. |
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| 13. | | BRIANO, C.; SCARSI, M.; VELAZCO, J.; BANCHERO, G.; MEIKLE, A.; QUINTANS, G. Alta y baja asignación de forraje antes del parto: I. Efectos sobre variables productivas, metabólicas y hormonales en vacas de carne. En: Congreso Latinoamericano de Producción Animal (ALPA). (23º, 2013, La Habana, Cuba). Actas Congreso.| Biblioteca(s): INIA La Estanzuela; INIA Treinta y Tres. |
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| 15. | | GONZÁLEZ, X.; ALVEZ, A.; MEIKLE, A.; NICOLINI, P.; ULGUIM, R.; VIÑOLES, C. Análisis morfológico de estructuras ováricas en vacas Hereford fértiles y subfértiles. ln: Encuentro de Investigadores de la Región Noreste: Cerro Largo-Rivera-Tacuarembó, 1., 12 de agosto de 2016, Campus Interinstitucional de Tacuarembó, Tacuarembó. Libro de Resúmenes. Tacuarembó: UDELAR; INIA, 2016. p. 28 Modalidad oral.| Biblioteca(s): INIA Tacuarembó. |
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| 16. | | GONZÁLEZ, X.; ALVEZ, A.; MEIKLE, A.; ULGUIM, R.; ULGUIM, R.; NICOLINI, P.; VIÑOLES, C. Características de las estructuras ováricas en vacas para carne fértiles y subfértiles. [Resumen]. In: CONGRESO ASOCIACIÓN URUGUAYA DE PRODUCCIÓN ANIMAL (6º, Marzo, 2018, Tacuarembó, Uruguay). Resúmenes. Tacuarembó: AUPA, 2018. p. 122| Biblioteca(s): INIA Tacuarembó. |
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| 18. | | ASTESSIANO, A.; PÉREZ-CLARIGET, R.; QUINTANS, G.; SOCA, P.; CROOKER, B.A.; MEIKLE, A.; CARRIQUIRY, M. Endocrine profiles during the peripartum of primiparous rangeland beef cows of different body condition score (BCS) at calving. In: International Congress on Animal Reproduction, (17º, 2012, Vancouver, Canada). 2012. Reproduction in Domestic Animals 2012, 47 (suppl. 4). Blackwell Verlag, Berlin. resumen no. 2201.| Biblioteca(s): INIA Treinta y Tres. |
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| 19. | | GUGGERI, D.; MEIKLE, A.; CARRIQUIRY, M.; MONTOSSI, F.; DE BARBIERI, I. Effect of different management systems on growth, endocrine parameters and puberty in Hereford female calves grazing campos grassland. Livestock Science, Volume 167, September 2014, Pages 455-462. DOI: http://dx.doi.org/10.1016/j.livsci.2014.06.026 Article history: Received 8March2014; Received in revised form 26 June2014; Accepted 30June 2014. Acknowledgments: The authors would like to thank Pablo Cuadro, Juan Manuel Egaña, Rosario Cuadrado and all the staff at Glencoe Research...| Biblioteca(s): INIA Tacuarembó. |
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| 20. | | GUGGERI, D.; MEIKLE, A.; CARRIQUIRY, M; MONTOSSI, F.; DE BARBIERI, I.; VIÑOLES, C. Efecto de mediano plazo de diferentes sistemas de manejo sobre el crecimiento, parámetros endócrinos y pubertad en terneras Hereford pastoreando campo natural. In:Viñoles, C.; Álvarez, J.P. Creep feeding: tecnología para aumentar el peso al destete. Montevideo (UY): INIA, 2017. p. 37-44 (INIA Serie Técnica; 238)| Biblioteca(s): INIA Tacuarembó. |
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| Registros recuperados : 39 | |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
22/09/2016 |
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Actualizado : |
22/09/2016 |
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Tipo de producción científica : |
Abstracts/Resúmenes |
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Autor : |
ALVEZ, A.; GUILLEN, S.; SEQUEIRA, M.; MEIKLE, A.; VIÑOLES, C. |
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Afiliación : |
ANDREA LORENA ALVEZ CERIZOLA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SERRANA GUILLEN DUARTE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Universidad de la República (UdelaR)/ Facultad de Veterinaria; Universidad de la República (UdelaR)/ Facultad de Veterinaria; CAROLINA VIÑOLES GIL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Sub-fertility in beef cattle: follicle dynamics and progesterone concentration during the estrus cycle. [Resumen de poster]. |
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Fecha de publicación : |
2016 |
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Fuente / Imprenta : |
ln: Encuentro de Investigadores de la Región Noreste: Cerro Largo-Rivera-Tacuarembó, 1., 12 de agosto de 2016, Campus Interinstitucional de Tacuarembó, Tacuarembó. Libro de Resúmenes. Tacuarembó: UDELAR; INIA, 2016. |
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Páginas : |
p. 44 |
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Idioma : |
Español |
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Notas : |
Modalidad: poster. |
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Contenido : |
The repeat breeder syndrome has been characterised in dairy cows, but the experimental model used virgin heifers as controls, which may potentially be sub-fertile. The aim of this study was to characterize the pattern of follicle and corpus luteum (CL) development and progesterone concentrations during the estrus cycle in fertile and sub-fertile adult beef cows. Eleven Hereford cows (fertile n=5; sub-fertile n=6) were used in this experiment. The categories were defined based on their pregnancy rate at 24 and 73 months of age after five services at each age (three by artificial insemination [AI] and two by natural mating) in fertile (pregnant at first AI at two years old, pregnant ≥ 3 times at 73 months of age) and sub-fertile (pregnant at the fourth of fifth service by natural mating or did not got pregnant at 24 months of age and got pregnant one or two times at 73 months of age). At 90 months of age, were synchronized with two intramuscular prostaglandin injections given 14 d apart. The ovarian scanning began on the day of the second PG injection and continued daily for a complete estrous cycle up to d 7 of the following cycle.
Plasma samples were collected daily by jugular venepuncture to determinate progesterone concentrations by RIA. Data were analysed by ANOVA, using the GLM and MIXED procedures in SAS. There were no differences in body weight, body condition or height between fertile and sub-fertile cows. There were no differences between groups in follicular dynamics, area of the CL, number of 2 to 5 mm follicles, total number of follicles, duration of the estrous cycle or interval from estrus to ovulation. However, progesterone concentrations were higher in subfertile (7.58 ± 0.96 ng/ml) than in fertile (5.19 ± 1.08 ng/ml; P<0.01) cows from d 8 to 18 of the cycle. In conclusion, under the conditions in which this experiment was conducted, sub-fertile cows had higher concentrations of progesterone than fertile cows. These findings could be associated with the expression of its receptors in the uterus2 known to affect embryo survival. MenosThe repeat breeder syndrome has been characterised in dairy cows, but the experimental model used virgin heifers as controls, which may potentially be sub-fertile. The aim of this study was to characterize the pattern of follicle and corpus luteum (CL) development and progesterone concentrations during the estrus cycle in fertile and sub-fertile adult beef cows. Eleven Hereford cows (fertile n=5; sub-fertile n=6) were used in this experiment. The categories were defined based on their pregnancy rate at 24 and 73 months of age after five services at each age (three by artificial insemination [AI] and two by natural mating) in fertile (pregnant at first AI at two years old, pregnant ≥ 3 times at 73 months of age) and sub-fertile (pregnant at the fourth of fifth service by natural mating or did not got pregnant at 24 months of age and got pregnant one or two times at 73 months of age). At 90 months of age, were synchronized with two intramuscular prostaglandin injections given 14 d apart. The ovarian scanning began on the day of the second PG injection and continued daily for a complete estrous cycle up to d 7 of the following cycle.
Plasma samples were collected daily by jugular venepuncture to determinate progesterone concentrations by RIA. Data were analysed by ANOVA, using the GLM and MIXED procedures in SAS. There were no differences in body weight, body condition or height between fertile and sub-fertile cows. There were no differences between groups in follicular d... Presentar Todo |
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Palabras claves : |
FOLLICULAR DYNAMICS; SUB-FERTILITY. |
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Thesagro : |
PROGESTERONA. |
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Asunto categoría : |
L53 Fisiología Animal - Reproducción |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/6087/1/pagina-44.pdf
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Marc : |
LEADER 02940naa a2200229 a 4500
001 1055710
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008 2016 bl uuuu u00u1 u #d
100 1 $aALVEZ, A.
245 $aSub-fertility in beef cattle$bfollicle dynamics and progesterone concentration during the estrus cycle. [Resumen de poster].$h[electronic resource]
260 $c2016
300 $ap. 44
500 $aModalidad: poster.
520 $aThe repeat breeder syndrome has been characterised in dairy cows, but the experimental model used virgin heifers as controls, which may potentially be sub-fertile. The aim of this study was to characterize the pattern of follicle and corpus luteum (CL) development and progesterone concentrations during the estrus cycle in fertile and sub-fertile adult beef cows. Eleven Hereford cows (fertile n=5; sub-fertile n=6) were used in this experiment. The categories were defined based on their pregnancy rate at 24 and 73 months of age after five services at each age (three by artificial insemination [AI] and two by natural mating) in fertile (pregnant at first AI at two years old, pregnant ≥ 3 times at 73 months of age) and sub-fertile (pregnant at the fourth of fifth service by natural mating or did not got pregnant at 24 months of age and got pregnant one or two times at 73 months of age). At 90 months of age, were synchronized with two intramuscular prostaglandin injections given 14 d apart. The ovarian scanning began on the day of the second PG injection and continued daily for a complete estrous cycle up to d 7 of the following cycle. Plasma samples were collected daily by jugular venepuncture to determinate progesterone concentrations by RIA. Data were analysed by ANOVA, using the GLM and MIXED procedures in SAS. There were no differences in body weight, body condition or height between fertile and sub-fertile cows. There were no differences between groups in follicular dynamics, area of the CL, number of 2 to 5 mm follicles, total number of follicles, duration of the estrous cycle or interval from estrus to ovulation. However, progesterone concentrations were higher in subfertile (7.58 ± 0.96 ng/ml) than in fertile (5.19 ± 1.08 ng/ml; P<0.01) cows from d 8 to 18 of the cycle. In conclusion, under the conditions in which this experiment was conducted, sub-fertile cows had higher concentrations of progesterone than fertile cows. These findings could be associated with the expression of its receptors in the uterus2 known to affect embryo survival.
650 $aPROGESTERONA
653 $aFOLLICULAR DYNAMICS
653 $aSUB-FERTILITY
700 1 $aGUILLEN, S.
700 1 $aSEQUEIRA, M.
700 1 $aMEIKLE, A.
700 1 $aVIÑOLES, C.
773 $tln: Encuentro de Investigadores de la Región Noreste: Cerro Largo-Rivera-Tacuarembó, 1., 12 de agosto de 2016, Campus Interinstitucional de Tacuarembó, Tacuarembó. Libro de Resúmenes. Tacuarembó: UDELAR; INIA, 2016.
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